Patent US2783422A successfully refreshed from Google Patents.
US2783422A
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US
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Preset servo system
Assignee: Umicore NV SA
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Filing: 1953-05-01
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Granted: 1957-02-26
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Expires: 1973-05-01
Abstract
No abstract record available.
Inventors
- 👤 Marcel Fouassin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:53
CPC Classifications
H; H03; H03M; H03M1/00; G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1436; C; C30; C30B; C30B15/00; C30B15/32; G05D3/121; G05D3/122; G05D3/124; G05D3/1418; H03M1/10; H03M1/1009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR366967A
Cited
US1999645A
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US2464249A
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US2508140A
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US2620441A
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US2614237A
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US2514983A
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US2561654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |